In article <8F7CC6C2Fseed7@204.213.191.228>, ing### [at] homenl (ingo) 
wrote:

> Could you "abuse" animated png's (mng) for that?

You could...but the file size would probably be bigger than it needs to 
be, unless mng supports 256-shade grayscale. And how does it handle the 
compression? Are frames compressed individually and stacked together, or 
does the compression use info from previous and following frames?


> Also you can stuff more than one image in a single tga (rl encoded) or 
> tiff file.

I know about these "stacks", but I don't think the compression is as 
efficient as it could be.

It might be better to have a custom format which can handle no 
compression, lossless compression, lossy compression(like MPEG), 8-bit 
grayscale and 24-bit color. Maybe we could call it 3df. :-)
Or maybe you could just support several animation formats, including MNG 
and MPEG.

-- 
Christopher James Huff - Personal e-mail: chr### [at] maccom
TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
Personal Web page: http://homepage.mac.com/chrishuff/
TAG Web page: http://tag.povray.org/

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